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- Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards
- Causes of Impairment for 303(d) Listed Waters
- Cumulative TMDLs by Pollutant
- Cumulative Number of TMDLs
Data are also available for these cycles:
2004
2006
Waterbody Changes from Prior Cycle
For More Information:
Pennsylvania Assessment Report
State Water Quality Program
Pennsylvania Impaired Waters and TMDL Information
Assessed Waters of Pennsylvania by Watershed
Search for a waterbody within Pennsylvania
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Pennsylvania Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards
No previously 303(d)-listed waters reported as now attaining all applicable water quality standards.
Pennsylvania 2002 Causes of Impairment for 303(d) Listed Waters
Description of this table| NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment. | |
| Cause of Impairment Group Name | Number of Causes of Impairment Reported |
|---|---|
| Sediment |  2,643 |
| Metals (other than Mercury) | 1,590 |
| Nutrients | 1,132 |
| pH/Acidity/Caustic Conditions | 1,021 |
| Organic Enrichment/Oxygen Depletion | 474 |
| Turbidity | 409 |
| Cause Unknown | 395 |
| Polychlorinated Biphenyls (PCBs) | 115 |
| Toxic Inorganics | 101 |
| Mercury | 82 |
| Pesticides | 73 |
| Salinity/Total Dissolved Solids/Chlorides/Sulfates | 73 |
| Pathogens | 62 |
| Algal Growth | 50 |
| Toxic Organics | 28 |
| Temperature | 26 |
| Total Toxics | 22 |
| Oil and Grease | 21 |
| Habitat Alterations | 18 |
| Chlorine | 8 |
| Ammonia | 5 |
| Taste, Color and Odor | 4 |
| Other Cause | 2 |
| Dioxins | 2 |
| Noxious Aquatic Plants | 2 |
| Flow Alteration(s) | 1 |
Total: 8,359 Causes of Impairment
Pennsylvania Cumulative TMDLs by Pollutant
This chart includes TMDLs since October 1, 1995.
Description of this table| NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant. | ||
| Pollutant | Number of TMDLs | Number of Causes of Impairment Addressed |
|---|---|---|
| Aluminum |  1,320 |
1,332 |
| Iron | 1,320 |
1,335 |
| Manganese | 1,319 |
1,331 |
| Siltation | 883 |
905 |
| pH | 817 |
823 |
| Phosphorus | 574 |
581 |
| Dissolved Oxygen | 142 |
142 |
| Pathogens | 100 |
100 |
| Polychlorinated Biphenyls (PCBs) | 98 |
98 |
| Suspended Solids | 90 |
90 |
| Sediment | 62 |
63 |
| Other Inorganics | 56 |
56 |
| Turbidity | 52 |
52 |
| Nitrogen | 44 |
83 |
| Metals (other than Mercury) | 40 |
40 |
| Nutrients | 31 |
32 |
| Acid | 24 |
24 |
| Salinity/Total Dissolved Solids/Chlorides | 17 |
17 |
| Chlordane | 16 |
16 |
| Organic Enrichment | 13 |
13 |
| Total Suspended Solids (TSS) | 13 |
14 |
| Temperature | 9 |
9 |
| Cause Unknown | 5 |
5 |
| Oil and Grease | 3 |
3 |
| DDT | 1 |
1 |
| Excess Algal Growth | 1 |
1 |
| Lead | 1 |
1 |
| Mercury | 1 |
1 |
| NH3 | 1 |
1 |
| Nonpriority Organics | 1 |
1 |
| Priority Organics Compounds | 1 |
1 |
| Suspended Sediment | 1 |
1 |
| Thermal Modifications | 1 |
1 |
| Toxicity | 1 |
1 |
Total: 7,058 TMDLs; 7,176 Causes of Impairment Addressed
Pennsylvania Cumulative Number of TMDLs
EPA Fiscal Year starts October 1 and ends September 30.
Description of this table
| NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year. | ||
| Fiscal Year | Number of TMDLs | Number of Causes of Impairment Addressed |
|---|---|---|
| 1998 | 114 |
114 |
| 1999 | 7 |
7 |
| 2000 | 3 |
3 |
| 2001 | 830 |
830 |
| 2003 | 828 |
828 |
| 2004 | 668 |
689 |
| 2005 | 1,404 |
1,409 |
| 2006 | 508 |
511 |
| 2007 | 665 |
706 |
| 2008 | 291 |
311 |
| 2009 | 1,447 |
1,471 |
| 2010 | 220 |
221 |
| 2011 | 42 |
43 |
| 2012 | 31 |
31 |
Total: 7,058 TMDLs; 7,176 Causes of Impairment Addressed